This is a story about endurance. A skinny 18-year-old kid from a dirt-poor family in thin-aired, equatorial Kenya, with no prospect of wealth or even comfort in his adult life, who did not wear shoes until his mid-teens, decides to become a
While training for a half marathon a year ago, Mary Johnson was fairly certain a 5K personal best was in reach. Her workouts indicated all systems were go, so she signed up for a local race near her home in Hamden, Conn., to give it her best shot. Johnson found herself at the front of the field with only a handful of men and a sprinkling of women. She felt a sub-20:00 coming her way.
Hot weather on race day doesn't have to derail your time goals: Take cues from NASA to maximize your chances of a fast marathon finish.